Until now, Apple has not used in their products, screens, made on technology AMOLED. The iPhone and iPad company uses liquid crystal displays, which, according to the company, are the most advanced in the industry. However, judging by this week published patent, the company does not rule out the possibility to translate "apple" Soup for OLED technology.
Patent and Trademark United States announced a patent application Apple, which relates to the invention in the field of AMOLED-display. Date of patent registration - July 24, 2014.
The document says that the OLED displays in some aspects still surpass LCDs. In particular, they provide a high-contrast image, no need for a backlight, can provide brighter colors and a wider color gamut. AMOLED-display can be made more flexible and lighter than liquid crystal displays. In addition, they have low thickness and incredible efficiency - LCD panel even with record low consumption can not compete with them on this indicator.
The document describes the Apple technology that allows to improve the quality AMOLED-panels. OLED display is an array of pixels on the substrate. Each pixel consists of three sub-pixels, and control the thin film transistors on a substrate. Construction subpixels includes light-reflecting light transmissive anode and the cathode, and to improve image quality subpixels are shaped microscopic cavities. The essence of the invention is to enable fine tuning in the production process of the distance between anode and cathode (the optical path) independently for each color using a special adjusting layer without the use of additional masks.
The traditional approach is to apply adjusting layers ITO with additional masks. Inventors figured out how to do the same mask, which is used in the formation of layer OLED. The invention discloses a method for obtaining layers of different thickness for each color subpixel.
Ways to use AMOLED devices Apple rumored ever since the release of the first iPhone. One of the main advantages of technology is the ability to create a device with a curved screen.